Pivoted removable sash type window

ABSTRACT

Tilt type sash windows usually comprise a pivot assembly slidable in the jamb liner on each side of the sash. The bottom of each sash is pivotally mounted in this assembly. The top of each sash is provided with a slide lock for unlocking and allowing the window to pivot inwardly. If it is desirable to remove the window from the mechanism, a tool is required to unbolt or open a slot. The present device provides the bottom rail of each sash with a wedge-shaped opening. A wedge-shaped pivot bar extends across the window opening and is provided with suitable extensions at each end for engaging the pivot assembly. The wedge-shaped pivot bar is positioned in the wedge-shaped opening of the bottom rail so that the sash, wedge-shaped pivot bar, and the pivot assembly slide vertically together. To remove the sash, the slide lock is pulled in and the upper end of each sash is pivoted inwardly in the conventional manner. Now, the bottom end of the sash is raised so that the wedge-shaped opening slides off the wedge-shaped pivot bar. The window is now free from the mechanism.

United States Patent Dan [451 Jan. 21, 1975 [75] Inventor: Matthew L.Dau, Long Island, N.Y.

[73] Assignee: Perfect Seal Window Inc., Ozone Park, N.Y.

[22] Filed: Mar. 20, 1973 [21] Appl. No.: 342,943

[52] US. Cl. 49/181, 49/453 [51] Int. Cl E05d 15/22 [58] Field of Search49/196, 174, 172, 181, 49/176, 453

[56] References Cited UNITED STATES PATENTS 1,428,068 9/1922 Walker49/176 X 1,688,836 10/1928 Stein 49/176 3,055,062 9/1962 Peters et al.49/174 3,126,588 3/1964 Osten 49/174 3,222,733 12/1965 Wahlfeld et al.49/181 3,434,236 3/1969 Weidner et al. 49/181 X Primary Examiner-DennisL. Taylor Attorney, Agent, or FirmSalter & Michaelson [57] ABSTRACT Tilttype sash windows usually comprise a pivot assembly slidable in the jambliner on each side of the sash. The bottom of each sash is pivotallymounted in this assembly. The top of each sash is provided with a slidelock for unlocking and allowing the window to pivot inwardly. If it isdesirable to remove the window from the mechanism, a tool is required tounbolt or open a slot. The present device provides the bottom rail ofeach sash with a wedge-shaped opening. A wedgeshaped pivot bar extendsacross the window opening and is provided with suitable extensions ateach end for engaging the pivot assembly. The wedge-shaped pivot bar ispositioned in the wedge-shaped opening of the bottom rail so that thesash, wedge-shaped pivot bar, and the pivot assembly slide verticallytogether. To remove the sash, the slide lock is pulled in and the upperend of each sash is pivoted inwardly in the conventional manner. Now,the bottom end of the sash is raised so that the wedge-shaped openingslides off the wedge-shaped pivot bar. The window is now free from themechanism.

PIVOTED REMOVABLE SASH TYPE WINDOW BACKGROUND OF THE INVENTION Extrudedaluminum window constructions of the double hung type have becomepopular because of their easy handling and installation. To allow accessto both sides of the sash for cleaning, such windows are usuallyconstructed so that each sash can be tilted 90 into the room. To thisend, a tilt or pivot device is provided which pivotally carries thebottom end of the sash and slides vertically in the jamb. Whileeffective in allowing the sash to pivot, the pivot mechanism does notpermit ready removal of the sash from the frame. To accomplish suchremoval, a screwdriver or other tool must normally be used to releasethe parts, and in those assemblies where no tool is required to effectremoval of the sash, the danger of the sash becoming accidentallyremoved is a serious problem.

SUMMARY OF THE INVENTION The present invention provides a pivoted sashtype window with a pivot construction which permits the sash to belifted and removed from the pivot mechanism without the use of tools,and in such a way that the danger of accidental removal of the sash isnegligible. Conventionally a carrying frame is slidable in each jamb,the frame carrying a pivot device which receives a pivot bar normallymounted on the bottom of each sash as shown, for example, in U.S. Pat.No. 3,055,062 issued Sept. 25, 1962 to Peters et al, and entitledPivoted Sash Type Window. In accordance with the present invention, thebottom rail of each sash is provided with a wedge-shaped openingextending inwardly from the inside or front of the window (when the sashis in vertical position). A wedge-shaped picot bar extends across thewindow opening and is provided with extensions at each end for engagingthe pivot device. The wedge-shaped pivot bar is frictionally engaged inthe wedge-shaped opening so that the sash rides vertically with thepivot bar and pivot assembly. When the sash is pivoted inwardly 90, thebottom end can be lifted up so that the bottom rail and its wedge-shapedopening can be removed from the wedge-shaped pivot bar, freeing the sashwithout the use of tools. To replace, the bottom rail is placed over thepivot bar, the bar and opening nesting together again. The sash is nowtilted to its vertical position and the window is back in place.

Other objects, features and advantages of the invention shall becomeapparent as the description thereof proceeds when considered inconnection with the accompanying illustrative drawings.

DESCRIPTION OF THE DRAWINGS In the drawings which illustrate the bestmode presently contemplated for carrying out the present invention:

FIG. I is a perspective view showing a window with both sashes pivotedinwardly;

FIG. 2 is a vertical section of the window with both sashes in verticalclosed position;

FIG. 3 is an enlarged fragmentary section showing the lower rail of asash in tilted position;

FIG. 4 is a view similar to FIG. 3 with the sash removed from the pivotbar; and

FIG. 5 is an exploded perspective view of the pivot bar mounting in thepivot assembly.

DESCRIPTION OF THE INVENTION Referring more in detail to the drawings,the window of the present invention comprises a frame 10 having a head12, side jambs l4, and a sill l6. Slidable in the frame 10 are the uppersash 18 and lower sash 20. The lower sash 20 comprises glass panes 22mounted in extruded frames, all of which are conventional. In a pivotedsash, the top extrusion 24 conventionally carries a pair of slidelatches 26, each having a front fingerengagable operating button 28.This assembly appears at each side edge for releasing the top of thesash from the frame for pivoting. More specifically, when it is desiredto tilt or pivot the sash, the buttons 28 are each slid inwardly torelease the latches 26 from the frame whereby the desired pivoting ortilting of the sash may be effected. The back of the extrusion 24 isprovided with a hooked portion 30 which interengages with portion 58 onthe upper sash 18 for Weatherstripping purposes.

The lower sash 20 rides in a conventional pivot member 32, see FIG. 5.The member 32 isprovided with a nylon tilt mechanism 34 having a flatcentral slot 36. An extruded wedge-shaped pivot bar 38 extends acrossthe window opening. At each end, a 3 inch length of U- shapedrectangular bar 40 is inserted and locked in place by a set screw 42with a small portion extending outwardly, which portion fits into theslot 36 of the nylon pivot member 34, FIG. 5.

The bottom rail 44 of the lower sash 20 comprises an extruded striphaving a portion 46 for holding the glass 22, an extended portion 48 formanual engagement to lift the sash, and a wedge-shaped opening 50 forreceiving the wedge-shaped pivot bar 38, FIG. 3. The lower sash 20 isthus mounted on the bar 38 by wedging the bar into the opening 50.

The upper sash 18 is similarly mounted. The upper raial 52 is providedwith slide latches 54. The bottom rail 56 is provided with the hookedportion 58 for interengaging with the portion 30 on the bottom sash forWeatherstripping, a curved portion 60 for manual engagement to draw thewindow down, and a wedgeshaped opening 62 similar to the opening 50 inthe lower sash. The opening 62 receives a wedge-shaped bar 64 similar tothe bar 38 and riding in a pivot member (not shown) identical to themember 32.

It should be noted that the window may be provided with conventionalbraking and balancing systems for ease of movement and for holding thewindow in position. Such a construction isillustrated in aforesaid USPat. No. 3,055,062.

With the parts assembled as hereinabove described, the bottom rails 44and 56 are mounted on their respective wedge-shaped bars 38 and 64. Thewindows are in vertical position and held there by the latches 26 and54. To tilt the windows into the position shown in FIGS. 1 and 3, thelatch buttons are manually operated to release the windows and thewindows are pulled inwardly, the bar 38 and extension 40 causing themember 34 to turn Removal of the window is simple. As shown in FIG. 4,the rail 44 is lifted vertically so that the wedge-shaped opening 50lifts off the wedgeshaped pivot bar 38. The window is now completelyfree of the frame. The upper sash 18 is removable in the same manner. Toreturn the window, it is held horizontally and the wedge-shaped opening50 is pushed onto the wedge-shaped pivot bar 38 into the position shownin FIG. 3. The window can now be tilted upwardly to vertical position,FIG. 2, and the latches 26 moved outwardly to latch the window in thisposition.

The construction is thus simple and easy with very little departure fromthe conventional window constructions. However, the constructionprovides an extremely simple and quick method of completely removing asash from the frame. No tools are required to release or install thewindow. Furthermore, the operation is so simple that any housewife canrelease the window without following complicated instructions. With thesash in its vertical operating position it is impossible for it tobecome detached from the pivot bar because the sash rides against theouter leg of the side jamb. Removal can only be effected with the windowin its 90 tilted position, and when in this position, the window can besafely cleaned without danger of accidental removal because the pressureapplied during the cleaning operation will tend to force the sashdownwardly on to the pivot bar. Also, when the window has been removedand it is desired to replace same, the wedgeshaped opening 50 can beeasily aligned with the pivot bar and forced downwardly thereagainst.

While there is shown and described herein certain specific structureembodying the invention, it will be manifest to those skilled in the artthat various modifications and rearrangements of the parts may be madewithout departing from the spirit and scope of the underlying inventiveconcept and that the same is not limited to the particular forms hereinshown and described except insofar as indicated by the scope of theappended claims.

What is claimed is:

l. A pivoted removable sash window comprising a frame including sidejambs, a pair of pivot members slidably mounted in each of said sidejambs, a pivot bar attached to each of said pivot members and extendingacross said frame, said pivot bar and pivot members being slidable as aunit up and down along said side jambs and said pivot members permittingrotation of said pivot bar about its own axis, said window comprising abottom sash having a recessed portion therein extending completelythereacross, said recess portion being configured so as to frictionallyreceive said pivot bar therein, whereby said window is removablyattached to said pivot bar, and means for releasably latching the upperrail of the window into vertical sliding position in said frame, saidrecessed portion being of generally U-shaped configuration, saidU-shaped configuration being disposed on its side when the window is invertical position and being inverted when the window is swung tohorizontal position, whereby said window may be lifted upwardly off saidpivot bar when said window is horizontally disposed.

2. In the window of claim 1, said pivot bar having a wedge-shaped crosssection.

1. A pivoted removable sash window comprising a frame including sidejambs, a pair of pivot members slidably mounted in each of said sidejambs, a pivot bar attached to each of said pivot members and extendingacross said frame, said pivot bar and pivot members being slidable as aunit up and down along said side jambs and said pivot members permittingrotation of said pivot bar about its own axis, said window comprising abottom sash having a recessed portion therein extending completelythereacross, said recess portion being configured so as to frictionallyreceive said pivot bar therein, whereby said window is removablyattached to said pivot bar, and means for releasably latching the upperrail of the window into vertical sliding position in said frame, saidrecessed portion being of generally U-shaped configuration, saidU-shaped configuration being disposed on its side when the window is invertical position and being inverted when the window is swung tohorizontal position, whereby said window may be lifted upwardly off saidpivot bar when said window is horizontally disposed.
 2. In the window ofclaim 1, said pivot bar having a wedge-shaped cross section.